1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
//! This is a fixture we use for tests that need lang items.
//!
//! We want to include the minimal subset of core for each test, so this file
//! supports "conditional compilation". Tests use the following syntax to include minicore:
//!
//! //- minicore: flag1, flag2
//!
//! We then strip all the code marked with other flags.
//!
//! Available flags:
//! sized:
//! slice:
//! unsize: sized
//! deref: sized
//! coerce_unsized: unsize
pub mod marker {
// region:sized
#[lang = "sized"]
#[fundamental]
#[rustc_specialization_trait]
pub trait Sized {}
// endregion:sized
// region:unsize
#[lang = "unsize"]
pub trait Unsize<T: ?Sized> {}
// endregion:unsize
}
pub mod ops {
// region:coerce_unsized
mod unsize {
use crate::marker::Unsize;
#[lang = "coerce_unsized"]
pub trait CoerceUnsized<T: ?Sized> {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a mut U> for &'a mut T {}
impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b mut T {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for &'a mut T {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for &'a mut T {}
impl<'a, 'b: 'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<&'a U> for &'b T {}
impl<'a, T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for &'a T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*mut U> for *mut T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for *mut T {}
impl<T: ?Sized + Unsize<U>, U: ?Sized> CoerceUnsized<*const U> for *const T {}
}
pub use self::unsize::CoerceUnsized;
// endregion:coerce_unsized
// region:deref
mod deref {
#[lang = "deref"]
pub trait Deref {
#[lang = "deref_target"]
type Target: ?Sized;
fn deref(&self) -> &Self::Target;
}
}
pub use self::deref::Deref;
// endregion:deref
}
// region:slice
pub mod slice {
#[lang = "slice"]
impl<T> [T] {
pub fn len(&self) -> usize { loop {} }
}
}
// endregion:slice
pub mod prelude {
pub mod v1 {
pub use crate::marker::Sized; // :sized
}
pub mod rust_2015 {
pub use super::v1::*;
}
pub mod rust_2018 {
pub use super::v1::*;
}
pub mod rust_2021 {
pub use super::v1::*;
}
}
#[prelude_import]
#[allow(unused)]
use prelude::v1::*;
|
